Revision as of 13:30, 3 January 2011 editChemLlama (talk | contribs)Extended confirmed users1,039 edits Add info← Previous edit |
Latest revision as of 17:33, 17 June 2024 edit undoSmokefoot (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers75,010 edits →Preparation and structure: reformat ref |
(35 intermediate revisions by 25 users not shown) |
Line 1: |
Line 1: |
|
{{chembox |
|
{{Chembox |
|
|
| Watchedfields = changed |
|
| verifiedrevid = 401612975 |
|
| verifiedrevid = 405682296 |
⚫ |
| Name = Cadmium bromide |
|
|
| ImageFile =Cadmium-chloride-3D-balls.png |
|
| Name = Cadmium bromide |
|
|
| ImageFile =Cadmium-chloride-3D-balls.png |
|
| ImageName = Cadmium bromide |
|
| ImageFile2 = Cadmium bromide tetrahydrate.jpg |
|
| IUPACName = Cadmium(II) bromide |
|
| ImageName = Cadmium bromide |
|
⚫ |
| IUPACName = Cadmium(II) bromide |
|
| Chemical Name = CdBr |
|
|
| OtherNames = Cadmium dibromide |
|
| OtherNames = Cadmium dibromide |
|
| Section1 = {{Chembox Identifiers |
|
|Section1={{Chembox Identifiers |
|
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
|
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
|
| ChemSpiderID = 23011 |
|
| ChemSpiderID = 23011 |
|
| UNII_Ref = {{fdacite|correct|FDA}} |
|
| UNII_Ref = {{fdacite|correct|FDA}} |
|
| UNII = 7726AXS0WH |
|
| UNII = 7726AXS0WH |
|
|
| EINECS = 232-165-1 |
|
| InChI = 1/2BrH.Cd/h2*1H;/q;;+2/p-2 |
|
| InChI = 1/2BrH.Cd/h2*1H;/q;;+2/p-2 |
|
| SMILES = BrBr |
|
| SMILES = BrBr |
Line 20: |
Line 22: |
|
| StdInChIKey = KPWJBEFBFLRCLH-UHFFFAOYSA-L |
|
| StdInChIKey = KPWJBEFBFLRCLH-UHFFFAOYSA-L |
|
| CASNo = 7789-42-6 |
|
| CASNo = 7789-42-6 |
|
| CASNo_Ref = {{cascite|correct|CAS}} |
|
| CASNo_Ref = {{cascite|correct|CAS}} |
|
|
| CASNo_Comment = |
|
| CASOther = <br> 13464-92-1 (tetrahydrate) |
|
|
| RTECS = |
|
| CASNo2 = 13464-92-1 |
|
|
| CASNo2_Comment = (tetrahydrate) |
|
|
| CASNo2_Ref = {{cascite|correct|CAS}} |
|
|
| RTECS = EU9935000 |
|
|
| PubChem = 24609 |
|
}} |
|
}} |
|
| Section2 = {{Chembox Properties |
|
|Section2={{Chembox Properties |
|
| Formula = CdBr<sub>2</sub> |
|
| Formula = CdBr<sub>2</sub> |
|
| MolarMass = 272.22 g/mol |
|
| MolarMass = 272.22 g/mol |
|
| Appearance = white to pale yellow crystalline solid |
|
| Appearance = white solid |
|
| Density = 5.192 g/cm<sup>3</sup>, solid |
|
| Density = 5.192 g/cm<sup>3</sup>, solid |
|
| Solubility = 56.3 g/100 mL (0 °C) <br> 98.8 g/100 mL (20 °C) <br> 160 g/100 mL (100 °C) |
|
| Solubility = 56.3 g/100 mL (0 °C) <br> 98.8 g/100 mL (20 °C) <br> 160 g/100 mL (100 °C) |
|
| SolubleOther = soluble in ], ], ] and liquid ]. |
|
| SolubleOther = soluble in ], ], ] and liquid ]. |
|
| MeltingPt = 568 °C |
|
| MeltingPtC = 568 |
|
|
| MeltingPt_notes = |
|
| BoilingPt = 844 °C |
|
|
|
| BoilingPtC = 844 |
|
|
| BoilingPt_notes = |
|
|
| MagSus = -87.3·10<sup>−6</sup> cm<sup>3</sup>/mol |
|
}} |
|
}} |
|
| Section3 = {{Chembox Structure |
|
|Section3={{Chembox Structure |
|
| CrystalStruct = ], ], SpaceGroup = R-3m, No. 166 |
|
| CrystalStruct = ], ], SpaceGroup = R-3m, No. 166 |
|
}} |
|
}} |
|
| Section7 = {{Chembox Hazards |
|
|Section7={{Chembox Hazards |
|
| ExternalMSDS = |
|
| ExternalSDS = |
|
|
| GHSPictograms = {{GHS07}}{{GHS09}} |
|
| EUClass = Harmful ('''Xn''')<br/>Dangerous for the environment ('''N''') |
|
|
|
| GHSSignalWord = Warning |
|
| EUIndex = 048-001-00-5 |
|
|
|
| HPhrases = {{H-phrases|302|312|332|410}} |
⚫ |
| NFPA-H = 2 |
|
|
|
| PPhrases = {{P-phrases|220|273|280|501}} |
⚫ |
| NFPA-F = 0 |
|
|
| NFPA-R = 0 |
|
| NFPA-H = 3 |
|
⚫ |
| NFPA-F = 0 |
|
| RPhrases = {{R20/21/22}}, {{R50/53}} |
|
|
⚫ |
| NFPA-R = 0 |
|
| SPhrases = {{S2}}, {{S60}}, {{S61}} |
|
|
| LD50 = 225 mg/kg, oral (rat) |
|
| LD50 = 225 mg/kg, oral (rat) |
|
|
| REL = Ca<ref name=PGCH>{{PGCH|0087}}</ref> |
|
|
| PEL = TWA 0.005 mg/m<sup>3</sup> (as Cd)<ref name=PGCH/> |
|
|
| IDLH = Ca <ref name=PGCH/> |
|
}} |
|
}} |
|
| Section8 = {{Chembox Related |
|
|Section8={{Chembox Related |
|
| OtherAnions = ],<br/>] |
|
| OtherAnions = ],<br />] |
|
| OtherCations = ],<br/>],<br/>] |
|
| OtherCations = ],<br />],<br />] |
|
}} |
|
}} |
|
}} |
|
}} |
|
|
|
|
|
|
'''Cadmium bromide''' is the inorganic compound with the formula CdBr<sub>2</sub>. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate.<ref name=Brauer/> It has few applications. |
|
'''Cadmium bromide''' is a cream-coloured crystalline ionic ] ] of ] that is soluble in water. It is very toxic, along with other cadmium compounds. |
|
|
|
|
|
|
⚫ |
==Preparation and structure== |
|
==Uses== |
|
|
|
Cadmium bromide is prepared by heating cadmium with bromine vapor.<ref name=Brauer>{{cite book|author1=F. Wagenknecht|author2=R. Juza|chapter=Cadmium bromide|title=Handbook of Preparative Inorganic Chemistry, 2nd Ed. |editor=G. Brauer|publisher=Academic Press|year=1963|place=NY, NY|volume=2|pages=1096}}</ref> The tetrahydrate has been obtained by crystallization of the dibromide from aqueous solution. At 3.04 g/cm<sup>3</sup>, it is much less dense than the anhydrous material. According to ], the tetrahydrate is a polymer of CdBr<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub> with bridging bromide ligands. There are two interstitial water molecules<ref>{{cite journal |doi=10.1107/S0567740878002186 |title=Structure Cristalline de CdBr<sub>2</sub><sup>.</sup>4H<sub>2</sub>O |date=1978 |last1=Leligny |first1=H. |last2=Monier |first2=J. C. |journal=Acta Crystallographica Section B |volume=34 |issue=1 |pages=5–8 |bibcode=1978AcCrB..34....5L }}</ref> |
|
It is used in the manufacturing of ], ] and ]. |
|
|
|
|
⚫ |
==Preparation== |
|
|
Cadmium bromide is prepared by heating cadmium with bromine vapor. Also the compound can be prepared by the treatment of dry ] with glacial ] and ]. Alternatively, it can be obtained by dissolving cadmium or ] in ] and evaporating the solution to dryness under ] in an inert atmosphere.<ref>Pradyot Patnaik. ''Handbook of Inorganic Chemicals''. McGraw-Hill, 2002, ISBN 0070494398</ref> |
|
|
|
|
|
|
==References== |
|
==References== |
|
<references/> |
|
<references /> |
|
|
|
|
|
{{Cadmium compounds}} |
|
{{Cadmium compounds}} |
|
|
{{bromine compounds}} |
|
|
|
|
|
] |
|
] |
|
] |
|
] |
|
|
] |
|
] |
|
] |
|
|
|
|
|
|
|
|
|
{{inorganic-compound-stub}} |
|
{{inorganic-compound-stub}} |
|
|
|
|
] |
|
|
] |
|
|
] |
|
|
] |
|
|
] |
|
|
] |
|
|
] |
|